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Shatec Engineering Consultants, LLC
El Dorado Hills, California
7064 Tarvisio Way, 95762


Contact:  Shakir Shatnawi Ph.D., PE
www.shatec.net
916-990-6488 Or Toll Free
sshatnawi@shatec.net
7064 Tarvisio Way
El Dorado Hills, California 95762

Contact:  Shakir Shatnawi Ph.D., PE
www.shatec.net
916-990-6488
sshatnawi@shatec.net
Dr. Shakir Shatnawi has a Ph.D. in Transportation Engineering and Pavement Design, and Masters in Construction Management with over 27 years of practical and extensive engineering and transportation expertise covering industry and public agencies including Caltrans and FHWA. Currently providing expert witness services, expert testimony and litigation support to attorneys and legal entities on cases related to accident reconstruction, analysis, design standards, construction specifications, guidelines, policies, public agency practices, transportation, roads, pavements, airports, materials, highway geometric design, drainage, asphalt, concrete, soil, repairs, maintenance, inspections, rehabilitation, construction quality control - quality assurance, construction claims, inspection, settlement, dispute resolution, pavement surface conditions such as friction, skid resistance, surface discontinuities, cracking, rutting, defects, potholes and roughness, failure investigations, forensic engineering, traffic, safety standards, construction work zone accidents, construction safety, safety operating procedures, roadside hazards, signage, sight distance requirements, ADA requirements, code violations, and engineering analysis.
Information:  
Accident Investigations,  Accident Reconstruction,  Civil Construction and Engineering,  Civil Engineering,  Concrete and Masonry,  Construction,  Construction Claims,  Construction Defects,  Failure Analysis,  Forensic Engineering,  Government,  Materials Science,  Motorcycle Accident Reconstruction,  Parking Lots,  Safety,  Safety Engineering,  Slip, Trip, and Fall,  Traffic Engineering,  Transportation, 


Dr. Shakir Shatnawi has a Ph.D. in Transportation Engineering and Pavement Design, and Masters in Construction Management with over 27 years of practical and extensive engineering and transportation expertise covering industry and public agencies including Caltrans and FHWA. Currently providing expert witness services, expert testimony and litigation support to attorneys and legal entities on cases related to accident reconstruction, analysis, design standards, construction specifications, guidelines, policies, public agency practices, transportation, roads, pavements, airports, materials, highway geometric design, drainage, asphalt, concrete, soil, repairs, maintenance, inspections, rehabilitation, construction quality control - quality assurance, construction claims, inspection, settlement, dispute resolution, pavement surface conditions such as friction, skid resistance, surface discontinuities, cracking, rutting, defects, potholes and roughness, failure investigations, forensic engineering, traffic, safety standards, construction work zone accidents, construction safety, safety operating procedures, roadside hazards, signage, sight distance requirements, ADA requirements, code violations, and engineering analysis.

Stewart Traffic Accident Reconstruction Service
Anchorage, Alaska
P.O. Box 210487, 99521


Contact:  Greg A. Stewart
www.starsreconak.com
907-244-5696 Or Toll Free
starsrecon@gmail.com
P.O. Box 210487
Anchorage, Alaska 99521

Contact:  Greg A. Stewart
www.starsreconak.com
907-244-5696
starsrecon@gmail.com
Stewart Traffic Accident Reconstruction Services was established in 2012 and provides statewide consulting services for criminal and civil, plaintiff and defense council, throughout the state of Alaska specializing in traffic collision investigation, technical review, analysis and reconstruction, crash data retrieval analysis, evidence management and audits, skip tracing and limited private investigation. Court certified expert Greg A. Stewart is a retired Anchorage Police Department police sergeant with over thirty-five years law enforcement experience specializing in the area of traffic collision investigation and reconstruction, crash data retrieval, criminal investigations and police evidence management.
Information:  
Accident Investigations,  Accident Photo Analysis,  Accident Reconstruction,  Automobile Accidents,  Crash Data Retrieval,  Investigative Consultant,  Police Ethics,  Police Policies and Procedures,  Police Policies and Procedures,  Police Procedures,  Police Tactics, 


Stewart Traffic Accident Reconstruction Services was established in 2012 and provides statewide consulting services for criminal and civil, plaintiff and defense council, throughout the state of Alaska specializing in traffic collision investigation, technical review, analysis and reconstruction, crash data retrieval analysis, evidence management and audits, skip tracing and limited private investigation. Court certified expert Greg A. Stewart is a retired Anchorage Police Department police sergeant with over thirty-five years law enforcement experience specializing in the area of traffic collision investigation and reconstruction, crash data retrieval, criminal investigations and police evidence management.

Tire Forensics Investigations
Saline, Michigan
9922 S. Maple Saline, 48176


Contact:  William J. Woehrle
www.tireforensics.com
734-255-3296 Or Toll Free
wwoehrle@tireforensics.com
9922 S. Maple Saline
Saline, Michigan 48176

Contact:  William J. Woehrle
www.tireforensics.com
734-255-3296
wwoehrle@tireforensics.com
Information:  
Accident Investigations,  Automotive,  Highway Traffic Safety,  Tires,  Wheels, 



A.B.C. Consulting Arborists LLC
Spokane, Washington
12402 North Division #294, 99218


Contact:  Daniel J. Maple, BCMA, RCA, MA, TRAQ, TPAQ
www.AbcArborist.Com
509-953-0293 Or Toll Free
daniel@abcarborist.com
12402 North Division #294
Spokane, Washington 99218

Contact:  Daniel J. Maple, BCMA, RCA, MA, TRAQ, TPAQ
www.AbcArborist.Com
509-953-0293
daniel@abcarborist.com

 Daniel J. Maple's CV


Daniel J. Maple is an ASCA Registered Consulting Arborist, ISA Board Certified Master Arborist, ISA Municipal Specialist, ASCA Tree & Plant Appraisal Qualified (TPAQ), ISA Tree Risk Assessment Qualified (TRAQ), Qualified Tree Farm Inspector, Commercial UAV Airman Pilot, and a Commercial Applicator.

Mr. Maple has provided ethical, scientifically sound, arboriculture solutions to both the public and private sector since 1987. During this time, Mr. Maple owned and operated a tree service, and was a first responder in several natural disasters that resulted in thousands of tree failures. His investigations into the tree failures and the experience gained, makes him uniquely qualified among his peers, as a risk assessor and risk mitigation planner.

Mr. Maple has used his years of hands on experience along with his formal education to provide ethical, unbiased, and scientifically based expert witness services for both plaintiffs and defendants across the U.S.

His areas of expertise include risk assessment, forensic investigation, tree & plant appraisals, timber trespass, peer review of reports & methodology, ANSI Standards & BMP’s, along with expert witness services, opinions and litigation support. Please contact him for an honest and timely review of your case.
Information:  
Accident Investigations,  ANSI Standards,  Appraisal Review,  Appraisers,  Arboriculture,  Arborist,  Forestry, 


 Daniel J. Maple's CV


Daniel J. Maple is an ASCA Registered Consulting Arborist, ISA Board Certified Master Arborist, ISA Municipal Specialist, ASCA Tree & Plant Appraisal Qualified (TPAQ), ISA Tree Risk Assessment Qualified (TRAQ), Qualified Tree Farm Inspector, Commercial UAV Airman Pilot, and a Commercial Applicator.

Mr. Maple has provided ethical, scientifically sound, arboriculture solutions to both the public and private sector since 1987. During this time, Mr. Maple owned and operated a tree service, and was a first responder in several natural disasters that resulted in thousands of tree failures. His investigations into the tree failures and the experience gained, makes him uniquely qualified among his peers, as a risk assessor and risk mitigation planner.

Mr. Maple has used his years of hands on experience along with his formal education to provide ethical, unbiased, and scientifically based expert witness services for both plaintiffs and defendants across the U.S.

His areas of expertise include risk assessment, forensic investigation, tree & plant appraisals, timber trespass, peer review of reports & methodology, ANSI Standards & BMP’s, along with expert witness services, opinions and litigation support. Please contact him for an honest and timely review of your case.

Canney Brook Forensic Engineers
Dover, New Hampshire
154 Middle Road, 03820


Contact:  R. Craig Williams P.E., CFEI, CFII
www.canneybrook.com
603-742-7200 Or Toll Free
canneybrook@comcast.net
154 Middle Road
Dover, New Hampshire 03820

Contact:  R. Craig Williams P.E., CFEI, CFII
www.canneybrook.com
603-742-7200
canneybrook@comcast.net
Craig Williams PE BSME MSAE CFEI CFII

Over 37 years professional engineering consulting, research, manufacturing, and forensics.

Specialties include fires & explosions, HVAC, mechanical, electrical, automation, materials, mobile & heavy equipment, safety, code compliance, workplace accidents, equipment, appliances, manufacturing, operations, maintenance & construction.

Mr. Williams investigations provide accurate causation determinations which allows litigators, insurance professionals, and involved parties to access the loss, make economic decisions, advance successful claims when possible, and/or mitigate liability when appropriate.

Craig Williams PE BSME MSAE CFEI CFII 38 years professional engineering consulting, research, manufacturing, and forensics. Forensic specialties include fires & explosions, HVAC, mechanical, electrical, automation, materials, mobile equipment, safety, code compliance, workplace accidents, equipment, appliances, manufacturing, operations, maintenance & construction. Mr. Williams investigations provide accurate causation determinations which allows litigators, insurance professionals, and involved parties to access the loss, make economic decisions, advance successful claims when possible, and/or mitigate liability when appropriate.
Information:  
Accident Investigations,  Fire and Explosions,  Fire Forensics,  Fire Origin and Cause,  Forensic Engineering,  HVAC Investigations,  OSHA,  Plumbing,  Product Failure,  Slip, Trip, and Fall, 


Craig Williams PE BSME MSAE CFEI CFII

Over 37 years professional engineering consulting, research, manufacturing, and forensics.

Specialties include fires & explosions, HVAC, mechanical, electrical, automation, materials, mobile & heavy equipment, safety, code compliance, workplace accidents, equipment, appliances, manufacturing, operations, maintenance & construction.

Mr. Williams investigations provide accurate causation determinations which allows litigators, insurance professionals, and involved parties to access the loss, make economic decisions, advance successful claims when possible, and/or mitigate liability when appropriate.

Craig Williams PE BSME MSAE CFEI CFII 38 years professional engineering consulting, research, manufacturing, and forensics. Forensic specialties include fires & explosions, HVAC, mechanical, electrical, automation, materials, mobile equipment, safety, code compliance, workplace accidents, equipment, appliances, manufacturing, operations, maintenance & construction. Mr. Williams investigations provide accurate causation determinations which allows litigators, insurance professionals, and involved parties to access the loss, make economic decisions, advance successful claims when possible, and/or mitigate liability when appropriate.

Mark Webber’s Arboricultural & Horticultural Consultancy LLC
Dayton, Ohio
8172 Hemple Rd, 45417


Contact:  Mark A. Webber BCMA, CPH, LTE, MArborA, OCMNT, RCA, TPAQ, TRAQ
www.expert-arborist.com
937-604-2291 Or Toll Free
mwebber@expert-arborist.com
8172 Hemple Rd
Dayton, Ohio 45417

Contact:  Mark A. Webber BCMA, CPH, LTE, MArborA, OCMNT, RCA, TPAQ, TRAQ
www.expert-arborist.com
937-604-2291
mwebber@expert-arborist.com

Mark Webber's CV


Mark A. Webber holds 19 different certifications, qualifications, accreditations, and licensures in the fields of arboriculture and horticulture. Most notably, Mr. Webber is a Register Consulting Arborist, Board Certified Master Arborist, and a Certified Professional Horticulturist with over 45 years of relevant professional experience.

Mr. Webber provides investigations, reports, and testimony in matters related to tree condition, maintenance, and removal. His expertise includes the management of nursery, arboricultural, agricultural and landscaping operations, pesticide use, appraisals of crop, tree and plant damage, and an assortment of horticultural issues. Mr. Webber is an admitted member of 32 industry organizations, including the American Society of Consulting Arborist, International Dendrology Society, and American Phytopathological Society, the OSHA (Occupational Safety and Health Administration) Small Business Advocacy Review Panel for Tree Care Industry Rules. Mr. Webber has been a court-qualified expert in his field in Ohio, New Jersey, Washington, and California.

Mr. Webber has been working at farms and nurseries since 1975. He remains active in his industry by serving on committees and boards and as the Founder/Co-owner of an arboricultural and horticultural firm. In this capacity, he provides a full range of landscape design, installation, and landscape management. His company provides tree evaluations and inventory, lawn care, weed and pest control, tree, and arboricultural services. Additional services include drainage improvements, soil, and leaf testing, management of trees during construction, installation of retaining walls, consulting, and other related areas. Mr. Webber has worked as a Research Assistant for the BASF Corporation involving fungicides, insecticides, and herbicides trials on a diverse assortment of economically import agricultural and horticultural crops. He also served as an Apiary (Honey Bee) Technician for The Ohio State University.

Mr. Webber earned an Associate in Applied Science and a Bachelor of Science degrees in Horticultural Science with a minor in Agricultural Economics both from The Ohio State University. He is designated as a Board-Certified Master Arborist by the International Society of Arboriculture and is a Tree Risk Assessment Qualified Arborist. Mr. Webber is a Master Nursery Technician by the Ohio Nursery & Landscape Association. He is designated as a MArborA by the United Kingdom’s Arboricultural Association. Mr. Webber is also a New Jersey Licensed Tree Expert (LTE #639) and is a Licensed Arborist in multiple states. The board of the American Society of Horticultural Science has designated Mr. Webber as a Certified Professional Horticulturist. The American Society of Consulting Arborist has credentialed Mr. Webber as Registered Consulting Arborist #7

Education and Certifications

• A.A.S., BS, Horticultural Science, Agricultural Economics, The Ohio State University, Columbus, OH

•2020 Graduate from ASCA(American Society of Consulting Arborist) Consulting Academy, Sacramento, California

•Tree and Plant Appraisal Qualification (TPAQ), American Society of Consulting Arborists

• Certified Professional Horticulturist #30086, American Society for Horticultural Science, Alexandria, Virginia

• Licensed Arborist

• Certified Tree Expert #639, Board of Tree Experts Jackson NJ, August 2016-August 2017

• Licensed Tree Expert #639, Board of Tree Experts Jackson NJ, August 2017-Present

•I.S.A. Board Certified Master Arborist OH-0824BUM, International Society of Arboriculture, (I.S.A. Certified Arborist)

• I.S.A. Certified Arborist Municipal Specialist, International Society of Arboriculture

•I.S.A. Certified Arborist Utility Specialist, International Society of Arboriculture

• Tree Risk Assessment Qualified (TRAQ), International Society of Arboriculture

•Ohio Commercial Pesticide Applicator 6A, 6C, 8

• Wildlife Protector Certification, Wildlife Training Institute

• Master Nursery Landscape Technician, Ohio Nursery & Landscape Association (ONLA), Columbus, OH

• MArborA, designated by the Arboricultural Association, United Kingdom

• Registered Consulting Arborist #706, American Society of Consulting Arborist

• Sky Warn Weather Spotter Training Certification, National Weather Service
Information:  
Accident Investigations,  Agricultural Pesticides and Herbicides ,  Arboriculture,  Arborist,  Horticulture, 


Mark Webber's CV


Mark A. Webber holds 19 different certifications, qualifications, accreditations, and licensures in the fields of arboriculture and horticulture. Most notably, Mr. Webber is a Register Consulting Arborist, Board Certified Master Arborist, and a Certified Professional Horticulturist with over 45 years of relevant professional experience.

Mr. Webber provides investigations, reports, and testimony in matters related to tree condition, maintenance, and removal. His expertise includes the management of nursery, arboricultural, agricultural and landscaping operations, pesticide use, appraisals of crop, tree and plant damage, and an assortment of horticultural issues. Mr. Webber is an admitted member of 32 industry organizations, including the American Society of Consulting Arborist, International Dendrology Society, and American Phytopathological Society, the OSHA (Occupational Safety and Health Administration) Small Business Advocacy Review Panel for Tree Care Industry Rules. Mr. Webber has been a court-qualified expert in his field in Ohio, New Jersey, Washington, and California.

Mr. Webber has been working at farms and nurseries since 1975. He remains active in his industry by serving on committees and boards and as the Founder/Co-owner of an arboricultural and horticultural firm. In this capacity, he provides a full range of landscape design, installation, and landscape management. His company provides tree evaluations and inventory, lawn care, weed and pest control, tree, and arboricultural services. Additional services include drainage improvements, soil, and leaf testing, management of trees during construction, installation of retaining walls, consulting, and other related areas. Mr. Webber has worked as a Research Assistant for the BASF Corporation involving fungicides, insecticides, and herbicides trials on a diverse assortment of economically import agricultural and horticultural crops. He also served as an Apiary (Honey Bee) Technician for The Ohio State University.

Mr. Webber earned an Associate in Applied Science and a Bachelor of Science degrees in Horticultural Science with a minor in Agricultural Economics both from The Ohio State University. He is designated as a Board-Certified Master Arborist by the International Society of Arboriculture and is a Tree Risk Assessment Qualified Arborist. Mr. Webber is a Master Nursery Technician by the Ohio Nursery & Landscape Association. He is designated as a MArborA by the United Kingdom’s Arboricultural Association. Mr. Webber is also a New Jersey Licensed Tree Expert (LTE #639) and is a Licensed Arborist in multiple states. The board of the American Society of Horticultural Science has designated Mr. Webber as a Certified Professional Horticulturist. The American Society of Consulting Arborist has credentialed Mr. Webber as Registered Consulting Arborist #7

Education and Certifications

• A.A.S., BS, Horticultural Science, Agricultural Economics, The Ohio State University, Columbus, OH

•2020 Graduate from ASCA(American Society of Consulting Arborist) Consulting Academy, Sacramento, California

•Tree and Plant Appraisal Qualification (TPAQ), American Society of Consulting Arborists

• Certified Professional Horticulturist #30086, American Society for Horticultural Science, Alexandria, Virginia

• Licensed Arborist

• Certified Tree Expert #639, Board of Tree Experts Jackson NJ, August 2016-August 2017

• Licensed Tree Expert #639, Board of Tree Experts Jackson NJ, August 2017-Present

•I.S.A. Board Certified Master Arborist OH-0824BUM, International Society of Arboriculture, (I.S.A. Certified Arborist)

• I.S.A. Certified Arborist Municipal Specialist, International Society of Arboriculture

•I.S.A. Certified Arborist Utility Specialist, International Society of Arboriculture

• Tree Risk Assessment Qualified (TRAQ), International Society of Arboriculture

•Ohio Commercial Pesticide Applicator 6A, 6C, 8

• Wildlife Protector Certification, Wildlife Training Institute

• Master Nursery Landscape Technician, Ohio Nursery & Landscape Association (ONLA), Columbus, OH

• MArborA, designated by the Arboricultural Association, United Kingdom

• Registered Consulting Arborist #706, American Society of Consulting Arborist

• Sky Warn Weather Spotter Training Certification, National Weather Service

Introtech Accident Reconstruction and Forensics
Grafton, Ohio
1006 Vivian Drive West, 44044


Contact:  James B. Crawford, ACTAR
www.introtechcrashreconstruction.com
440-926-2627 Or Toll Free
jcrawford@introtechcrash.com
1006 Vivian Drive West
Grafton, Ohio 44044

Contact:  James B. Crawford, ACTAR
www.introtechcrashreconstruction.com
440-926-2627
jcrawford@introtechcrash.com
With locations in Florida and Ohio, Introtech has over two hundred years of combined investigative and accident reconstruction experience across the country. We apply this vast on-scene experience along with our specialized training and education from a wide variety of educational institutions to perform forensic analysis. We utilize the latest technology to forensically analyze evidence from transportation accidents, toxicology-related events, and more. Our staff is trained and experienced in the analysis of environmental issues, traffic control devices, navigation systems, human factors, biomechanics, forensic toxicology, and other specialized forensic issues. We apply this knowledge to land, marine, and aviation environments. Introtech employs a team approach to our work. Each forensic investigator and reconstructionist has knowledge in specialized areas that can be called upon to provide a multidisciplinary forensic reconstruction.

Florida Location:

1391 NW, St. Lucie W Blvd, Suite 366  Port St. Lucie, FL 34986  Telephone: 954-337-1517  Fax: 954-666-5700
Information:  
Accident Investigations,  Accident Reconstruction,  Aircraft Reconstructions,  Bicycle Reconstructions,  Biomechanics,  Commercial Vehicle Accident Reconstruction,  Crash Data Retrieval,  Highly Automated Vehicles,  Motorcycle Accident Reconstruction,  Pedestrian Reconstructions,  Slip, Trip, and Fall,  Watercraft Reconstructions, 


With locations in Florida and Ohio, Introtech has over two hundred years of combined investigative and accident reconstruction experience across the country. We apply this vast on-scene experience along with our specialized training and education from a wide variety of educational institutions to perform forensic analysis. We utilize the latest technology to forensically analyze evidence from transportation accidents, toxicology-related events, and more. Our staff is trained and experienced in the analysis of environmental issues, traffic control devices, navigation systems, human factors, biomechanics, forensic toxicology, and other specialized forensic issues. We apply this knowledge to land, marine, and aviation environments. Introtech employs a team approach to our work. Each forensic investigator and reconstructionist has knowledge in specialized areas that can be called upon to provide a multidisciplinary forensic reconstruction.

Florida Location:

1391 NW, St. Lucie W Blvd, Suite 366  Port St. Lucie, FL 34986  Telephone: 954-337-1517  Fax: 954-666-5700